1. Pseudo-Tie Reservations
Accounting for Transmission Service that is reserved for use by untagged Pseudo-ties
1/15/2014
Alan Pritchard - Duke Energy

2. Pseudo-Tie Reservations
Pseudo-Tie A telemetered reading or value that is updated in real time and used as a “virtual” tie line flow in the AGC/ACE equation but for which no physical tie or energy metering actually exists. The integrated value is used as a metered MWh value for Interchange accounting purposes.
1/15/2014
Alan Pritchard - Duke Energy

3. Pseudo-Tie Reservations
Background
NERC, in proposed change to Interchange Standard 004-3, provides new guidance for tagging of pseudo-ties. In summary, the pseudo-ties can be either tagged or included in a congestion management program and it also requires registering each pseudo-tie in the EIR.
The WEQ BPS, establishes submission of pseudo-ties to the SDX as a mechanism for including untagged pseudo-ties in the Eastern Interconnection’s TLR process. The WEQ-008 proposed business practice also requires each TSP to approve Pseudo-Tie Definitions in SDX that impact the TSP’s system.
1/15/2014
Alan Pritchard - Duke Energy

4. Pseudo-Tie Reservations
A Transmission Service Reservation’s capacity allocated in the Pseudo Tie Definition in SDX should only be used for the pseudo-tie and should not be used for other purposes by the Transmission Customer.
PTP capacity should not be available for a Redirect on a Firm Basis (See WEQ-001-9).
PTP capacity should not be available for Redirects on a Non-Firm Basis (See WEQ ).
PTP capacity should not be available for Resales (see WEQ ).
Network Service capacity should not be available for Request for temporary termination of DNR (see WEQ )
Network Service capacity should not be available for Request for indefinite termination of DNR (see WEQ )
Network customer may not terminate Secondary Network Capacity (see WEQ )
1/15/2014
Alan Pritchard - Duke Energy

5. Pseudo-Tie Reservations
2-way communication doesn’t exist between the SDX and the e-tagging system, nor is there any 2-way communication between the SDX and OASIS.
Transmission service which is dedicated to a pseudo-tie will not be available for other uses.
The capacity can be changed over time as needed.
There will be a mechanism for keeping the capacity allocation in sync between SDX and OASIS.
1/15/2014
Alan Pritchard - Duke Energy

6. Pseudo-Tie Reservations
Pseudo-ties will be registered in WebRegistry, as requested by the NERC Coordinate Interchange Standards Drafting Team (CISDT) in the Request for Enhancement to NAESB EIR #ER13001.
A new object called Pseudo-Tie is created by BAs. The new object should have e-Tag physical path data including Source/Sink BA, the intermediate BAs and TSPs, associated RCs, and the appropriate POR/POD and Source/Sink points. See table below. All cited entities in the Pseudo-tie object must approve the object. Objects should be published in the XML publication file and each have a unique object ID that cannot be duplicated.
Source BA Source
TSP POR POD BA
Sink BA Sink
1/15/2014
Alan Pritchard - Duke Energy

7. Pseudo-Tie Reservations
Recommendation:
A new Request Type named PT (for this presentation) will be established with the following characteristics:
It will be a form of scheduling rights, similar to a Resale in PTP.
It will have the same reservation priority as the Parent reservation.
It must include the unique identifier from the EIR-Registered Pseudo-Tie.
Only one PT reservation may be submitted for a given EIR-registered pseudo-tie.
Multiple PT reservations against a Parent reservation but each must have a unique identifier from the EIR-Registered Pseudo-Tie
It cannot be resold or redirected.
It may be applied to PTP or NITS.
It must have the same reservation characteristics (source, sink, POR, POD, etc) as the parent reservation.
Capacity may be adjusted over time. If increased, capacity will be taken from the parent reservation. If decreased, capacity will be restored to the parent reservation.
The parent reservation must not be subject to preemption and competition (e.g., for firm service it must be unconditional with respect to section 13.2 of the OATT)
The PT reserved capacity will act as an encumbrance on the parent reservation and, therefore, will reduce the Capacity Available to Redirect of the parent reservation.
It may be submitted in conjunction with a new request for NITS or PTP service.
1/15/2014
Alan Pritchard - Duke Energy